The Union 2277 3 lever mortice sashlocks are ideal for timberdoors hinged on the left or right and they keys are suitable fordoors up to 54mm thick. The deadbolt is locked or unlocked by thekey from either side with the latch bolt withdrawn by lever handlefrom either side. The locks are also pierced to accept bolt throughfurniture.

These locks have a 12.5mm anti-saw brass deadbolt, with hardenedsteel rollers and the striking plate is finished to match theforend.

A deadlock has a single deadbolt which is locked or unlocked andlocked by means of a key from either side, whereas, a sashlock hasboth a deadbolt and a latch which is operated from either side by alever handles.

The security level of mortice deadlocks or sashlocks ranges from2-5 levers. The higher the number of levers the more secure thelock is.